"Please adjust your dress before leaving" is the rather strange way the notices in public bogs in England put it, in a way to avoid this little local difficulty.

I remember a song contest at a festival in Ireland where the chief adjudicator sprawled there, behind his table up on the stage, giving forth at length his gems of wisdom and disapprobation. And all the while his flies were gaping wide open for the rapt audience, with their attention fixed on him throughout. He thought we were all ears, but in fact we were all eyes.